Railway switch



' March 20, 1928.

I3` TATUM RAILWAY SWITCH Filed. Nov. 14, 1925 WHNESSW Patented Mar. 20,19278.

UNIrEnrSTATES;:P

Y DUKE TATUM, OF IDOII'IAN,ALABAMA.

RAILWAY SWITCH;

Application iled llmrei'nber14,` 1925,;Seria1 No. 53,123.5, y n.

Theobject of the inventionlis to providel A iurthenfobject is to providetrack,`v structure includingy,devices :tor engagement byeither,pilotvwheel,said devices control ling agplurality: of pivotedelements freely mounted with reference to each other and interengaging.as described below, for throwing the .switch point to the position4required for following k,the straighttrackor for rounding acurveor` thelike,v

A still `further object .is to provide `retaining means forthefswitchpoint,v

With the foregoing and otheruobjectsvjn view, theinvention consistsinthe novel `con#` struction and arrangement of elements described,illustratedfandclaimed, it being understood that Vmodiic'zations maybemade within the scope of the claims without departing from the spirit ofthe invention.

In the drawing forming part of this application,

Figure plan.

Figure 2 is a longitudinal section, the section being on the line 2 2 ofFigure 1.

Figure 3 shows the car carried means in side elevation, with a portionory a car truck and wheel, in dotted lines.

Figure 4 shows the car carried devices in front elevation.

Figure 5 is a diagrammatic view of the circuit for .controlling themagnetsv by which the' respective pilot wheels are operated.

The straight rails of a track are designated and 11, these railsbeingmounted on ties 12, and the rail 11 merging into deiiected rail 13, fora curve, siding, or the like, and rail 13 being complementary to therail 13.

On one of the ties 12, I pivot at 14 a pair of bars 15 and 16 havingtheir forward ends pivoted at 17 to a transverse bar 18 extend- 1 showsthe track structure in top ing perpendicularly with reference to theVrails 10 and 11.

A lever 20 is fulcrumed at 21 on one of the ties, and is pivotallyconnected at 22 with the bar 18 and is operated thereby when one of thepilot wheels, referred to be- 10W, engages the bar 15 or 16 and throwsone of the l,bars outwardly with reference toy the adj acent trackrail.k

i The; lever `-20 hasgavtaperedv. endl portion@ 4 terminating m a point,21, andthelatter engages a ii-shaped cutaway portion 25 in aj pivoted.'arm25. -I 4ll'iisla-rm last namedhas a tareledendf the 11011111 0f the.arm engaging i; the cutaway portion 426 in switch point ,lever 27,pivoted atf28, on one oli theties.

VThe lever 28 is. connectedvfby meanspt pivoted link L29 withSwitchpoint `3() and, operatesthe. latter in an obviousmannen` themovement of this element-being limited by short rail or stop -31.

In order.` to retain Switchpoint 3Q in the position in `which itisthrown, f1. plOVCle .a retaining` vor locking device ,desighated l andprovided with aslot through which bolt 37 pflssesinteonepof the teSQlZT011@ end of member 35 is'tapered as shown at .35 and this end engages aV-shaped cut'-,

away portion 38 in theend of element 27, 7- i' i the other'end ofelement 35 havingV a bore'39 therein for the reception of. one end of acoiled spring 40, the opposite end of the springbeing received by socket41 in pivoted socket member 42. The expansion spring imparts end thrustto element 35 and tends to hold switch point lever 27 in ythe positionin which it is placed.

The car carried devices include levers or arms and 51 pivotally mountedat their upper ends, these elements being downwardly deflected at 50 and51 and mounting brackets 52, and supporting in connection with thesebrackets7 axial members 53. Pilot wheels 54C are mounted on elements 53and each includes a flanged portion 541, the latter engaging the edge ofthe track rail, at the head thereof, and being adapted to engage pivotedbar 15 or 16, as the case may be.

The levers 50 and 51 are normally held in an upper and inoperativeposition by means of springs such as 55, but arms 50 and 51 are thrownto operative position by vertically movable bars 56 having upper ofi?-rset ends'57 constituting armatures for cooperation with the magnets 58.

switch point 30, will be operated, and the .switch point will beretained in that position by means of the retaining element 35.

In Figure 5, the electric switch 60, constituting a controlling devicefor determining the direction of travel of the car, cooperates withswitch points 6l and 62, and has connection by means of wire 63 withbattery 64. IThe other terminal o'i'- the battery is connected with wire65, the latter leading to one of the magnets 58, and a wire 65 leadingto the other magnet 58 which is in electrical connection by means of awire 66 with contact point 62.

Vihat is claimed is z l. The combination'with a switch point, of a.switchk point operating lever, a pivoted arm freely engaging said leverand controlling the movement thereof, a pivoted lever i'reely engagingthe pivoted arm, said arm having detached endwise engagement with thelevers and means adapted for operation by a car carried device, rorcontrolling the lever. e

2. The combination with a switch point,

, of a switch pointoperating lever, having recesses lin opposite endsthereof, a locking device engaging one of said recesses, and .a pivotedarm freely engaging the other recess and controllingthe movement of theswitch point lever.

3. The combination witha switch point,

of a switch pointoperating lever, having recesses in opposite endsthereof, a locking device engaging one of said recesses, and a pivotedarm freely engaging the other recess and controlling the movement of theswitch point lever, and a spring `for imparting end, thrust to thelocking device.

a. rhe combination with a switch point, or' operating means thereforincluding a plurality or' levers pivotally mounted in spaced relation,and in alinement, a pivoted arm mounted between approaching ends OI thelevers, and 'freely engaging said ends, one ot the levers havingoperative connection with the arm, and said arm having operativeconnection with the other lever.

5. `The combination with a switch point, of operating means thereforincluding a plurality of levers pivotally mounted in spaced relation,and in alinement, a pivoted arm mounted between approaching ends of thelevers, and freely engaging said ends, one of the levers havingoperative connec tion withV the arm, said arm having operativeconnection with the other lever, a loching device in alinementyat times,with one ot the levers and freely engaging that lever, and a spring forimparting end thrust to the locking device.

ln testimony whereot' affix my signature.

Dunn TATUM.

